BIO 169 Blood Questions and Answers Already Passed

BIO 169 Blood Questions and Answers Already Passed What is the fraction of plasma in blood? Plasma constitutes 55% of the total blood volume. What portion of blood consists of red blood cells? Red blood cells make up 45% of the blood. What is the combined proportion of white blood cells and platelets in blood? The combined percentage of white blood cells and platelets is 1%. What is the typical value for hematocrit? The average hematocrit level is 45%. What does plasma consist of? Plasma is composed of 92% water, 7% proteins, and 1% other solutes. 2 What is the primary function of red blood cells? The main role of red blood cells is to transport oxygen and carbon dioxide throughout the body. What do white blood cells primarily do? White blood cells are primarily responsible for fighting infections. What role do platelets play in the blood? Platelets are crucial for the clotting process, helping to prevent excessive bleeding. What are the components of red blood cells? Red blood cells contain four heme groups, globin, and four iron ions. What function does erythropoietin serve? Erythropoietin stimulates and regulates the production of red blood cells. What initiates the production of red blood cells? 3 The production of red blood cells is triggered by erythropoietin, which responds to low oxygen levels in the blood. What is meant by erythropoiesis?